Washing gun



FIG. 1 is a left side view of my new, ornamental design;

FIG. 2 is a right side view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a perspective view illustrating the left side, top and front thereof. 

The ornamental design for a washing gun, as shown. 